[INFO] cloning repository https://github.com/Nikita-str/ref_struct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nikita-str/ref_struct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikita-str%2Fref_struct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikita-str%2Fref_struct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 966198cbb54d2b885c6a1fb0fdfb53081c686ee7
[INFO] checking Nikita-str/ref_struct/966198cbb54d2b885c6a1fb0fdfb53081c686ee7 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikita-str%2Fref_struct" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nikita-str/ref_struct on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nikita-str/ref_struct
[INFO] finished tweaking git repo https://github.com/Nikita-str/ref_struct
[INFO] tweaked toml for git repo https://github.com/Nikita-str/ref_struct written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Nikita-str/ref_struct already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16afd940e681522357000e4ff353f67baf337390410b3104d3e1ee74b23286f3
[INFO] running `Command { std: "docker" "start" "-a" "16afd940e681522357000e4ff353f67baf337390410b3104d3e1ee74b23286f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16afd940e681522357000e4ff353f67baf337390410b3104d3e1ee74b23286f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16afd940e681522357000e4ff353f67baf337390410b3104d3e1ee74b23286f3", kill_on_drop: false }`
[INFO] [stdout] 16afd940e681522357000e4ff353f67baf337390410b3104d3e1ee74b23286f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 638c6f9c4c1ec6e5245cd12adccd0048c7a56b3f315764a16606f44352251853
[INFO] running `Command { std: "docker" "start" "-a" "638c6f9c4c1ec6e5245cd12adccd0048c7a56b3f315764a16606f44352251853", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking syn v2.0.41
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]     Checking ref_struct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `map` are never read
[INFO] [stdout]   --> src/general.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct NamedIdents<R: RepeatAllow = RepeatAllowStd> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 52 |     pub name: syn::Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 53 |     pub map: HashMap<String, syn::Ident>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NamedIdents` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/general.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub struct NamedList<T> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 92 |     pub name: syn::Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NamedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stdout] warning: fields `name` and `map` are never read
[INFO] [stdout]   --> src/general.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct NamedIdents<R: RepeatAllow = RepeatAllowStd> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 52 |     pub name: syn::Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 53 |     pub map: HashMap<String, syn::Ident>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NamedIdents` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/general.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub struct NamedList<T> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 92 |     pub name: syn::Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NamedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rmp-serde v1.1.2
[INFO] [stdout] warning: fields `name` and `map` are never read
[INFO] [stdout]   --> src/general.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct NamedIdents<R: RepeatAllow = RepeatAllowStd> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 52 |     pub name: syn::Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 53 |     pub map: HashMap<String, syn::Ident>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NamedIdents` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/general.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub struct NamedList<T> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 92 |     pub name: syn::Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NamedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.17s
[INFO] running `Command { std: "docker" "inspect" "638c6f9c4c1ec6e5245cd12adccd0048c7a56b3f315764a16606f44352251853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "638c6f9c4c1ec6e5245cd12adccd0048c7a56b3f315764a16606f44352251853", kill_on_drop: false }`
[INFO] [stdout] 638c6f9c4c1ec6e5245cd12adccd0048c7a56b3f315764a16606f44352251853